Electric-field control of magnetic domain wall motion and local magnetization reversal.

Scientific Reports
Tuomas H E LahtinenSebastiaan van Dijken

Abstract

Spintronic devices currently rely on magnetic switching or controlled motion of domain walls by an external magnetic field or spin-polarized current. Achieving the same degree of magnetic controllability using an electric field has potential advantages including enhanced functionality and low power consumption. Here we report on an approach to electrically control local magnetic properties, including the writing and erasure of regular ferromagnetic domain patterns and the motion of magnetic domain walls, in CoFe-BaTiO(3) heterostructures. Our method is based on recurrent strain transfer from ferroelastic domains in ferroelectric media to continuous magnetostrictive films with negligible magnetocrystalline anisotropy. Optical polarization microscopy of both ferromagnetic and ferroelectric domain structures reveals that domain correlations and strong inter-ferroic domain wall pinning persist in an applied electric field. This leads to an unprecedented electric controllability over the ferromagnetic microstructure, an accomplishment that produces giant magnetoelectric coupling effects and opens the way to electric-field driven spintronics.

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Citations

Jan 15, 2014·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·J-M HuC W Nan
Jan 15, 2014·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·D M EvansJ M Gregg
Jan 30, 2015·Nature Communications·Ziyao ZhouNian X Sun
Feb 18, 2016·Scientific Reports·Ben Van de WieleSebastiaan van Dijken
Oct 1, 2014·Scientific Reports·Li Ming LoongHyunsoo Yang
Dec 17, 2014·Scientific Reports·J J WangC W Nan
Nov 10, 2015·Advanced Materials·Jia-Mian HuCe-Wen Nan
Jan 28, 2014·Nature Materials·R O CherifiM Bibes
Jun 24, 2016·Scientific Reports·M Al Bahri, R Sbiaa
Jan 4, 2017·Scientific Reports·Akhilesh Jaiswal, Kaushik Roy
Sep 27, 2019·Materials·Nives StrkaljMorgan Trassin
Feb 2, 2013·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Jang-Yong KimSebastiaan van Dijken
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Nov 28, 2015·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Tomoyasu Taniyama
Jun 9, 2018·Physical Review Letters·Blai CasalsGervasi Herranz

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Methods Mentioned

BETA
optical
polarization microscopy
transmission electron

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